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Surge Protector Problems? Fixes (2026)
Common surge protector problems: protection light out, strip not powering devices, tripped breaker, and plugs that will not fit.
Most surge protector trouble comes from an exhausted protector, an overloaded strip, or a cable routed around the protection. Work through these fixes in order before replacing the unit.
The protection light is out but devices still have power
Replace the strip. The protection light shows that the absorbing components are still alive, and when it goes out, those components are exhausted. Power still flows because the strip is also a power strip, but the surge defence is gone, and the next spike will reach your equipment unopposed. Do not keep using an unprotected strip for valuable gear while waiting for a replacement.
The strip trips its breaker or cuts power repeatedly
Unplug everything, reset the breaker, then reconnect devices one at a time to find the overload. A strip trips when the total load exceeds its rating, and heaters, kettles, and large appliances belong on a wall socket, never on a surge strip. If the strip trips with only ordinary electronics connected, its breaker or its protection may have failed, and it should be replaced rather than reset again and again.
Devices plugged into the strip were still damaged by a surge
Check whether every cable to the damaged device passed through the strip. A television fed by a coaxial cable plugged straight into the set, or a router on a phone line bypassing the strip, was never protected, however good the strip itself is. Route every line through the strip's jacks, and check that the strip's protection light was lit before the event: a strip whose protection was already exhausted cannot be blamed for the next spike.
Bulky adapters block neighbouring outlets
Move bulky adapters to the spaced or BlockSpace outlets designed for them, and ordinary plugs to the standard outlets between them. If the strip has no spaced outlets, a short extension lead for one adapter frees the neighbouring socket without daisy-chaining a second strip. For a permanent fix, choose a strip with dedicated adapter spacing, like the Belkin BE112230-08, rather than fighting the layout every time a plug changes.
Questions, answered
Why does my surge protector feel warm?
Mild warmth under load is normal, since current passing through any strip generates some heat. A strip that is hot to the touch, smells of burning, or shows discolouration around an outlet should be unplugged immediately and replaced, since those are signs of overload or internal failure, not normal operation.
Can I plug a surge protector into an extension lead?
You should not. Extension leads and strips chained together overload the first device in the chain and can defeat the protection of both. Run the surge strip from a wall socket directly, and choose a strip with a cord long enough to reach, rather than extending it.
Does unplugging during a storm help?
Yes, for the most severe storms, unplugging valuable equipment removes every route a surge can take, including routes no strip covers. A good strip handles ordinary surges and distant strikes, but during a storm directly overhead, unplugging is the only complete protection, and it costs nothing.